The 49-556 is a 6.00 mm diameter Sapphire Half-Ball Lens, uncoated, available from Edmund Optics. This lens is a part of the Half Ball Lens category, featuring a base shape of Circular geometry. The lens has a diameter of 6 mm, a thickness of 3 mm, and an inner radius of 0 mm, with no specified outer radius.
The lens is made of Sapphire, specifically identified as al2o3 mal-1972-n-o in the Material ID. The wavelength for this lens is 587.6 nm. The lens shape is a Half Ball Lens, and it does not have any specified coating.
According to the provided item data, this lens is currently in stock and available for purchase. The vendor, Edmund Optics, provides a weblink for further information and purchasing options. The weblink status is valid, indicating that the information is up-to-date and accurate.